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林业科学 ›› 2005, Vol. 41 ›› Issue (6): 166-169.doi: 10.11707/j.1001-7488.20050629

• 研究简报 • 上一篇    下一篇

度量误差对全林整体模型的影响研究

李永慈1 唐守正2   

  1. 1.北京林业大学基础学院,北京100083;2.中国林业科学研究院资源信息研究所,北京100091
  • 收稿日期:2004-06-14 修回日期:1900-01-01 出版日期:2005-11-25 发布日期:2005-11-25

A Study on Impact of Measurement Error on Whole Stand Model

Li Yongci1,Tang Shouzheng2   

  1. 1.Base Department, Beijing Forestry University Beijing100083; 2. Research Institute of Forestry Resource Information Techniques, CAF Beijing100091
  • Received:2004-06-14 Revised:1900-01-01 Online:2005-11-25 Published:2005-11-25

关键词: 度量误差, 全林整体模型, 最小二乘估计

Abstract:

Based on the whole stand model of Daqingshan, using simulation method, the impact of measurement error of number of trees per hectare, average diameter, dominant height, average height and form height on the whole stand model were studied. The result indicated that, beting estimated by least square method, basal area model, average diameter model, number of trees per hectare model had obvious biases, but dominant height model, average height model and form height model had no clear biases.

Key words: measurement error, whole stand model, least square estimation